Wijzigingen

|buitenland=ja

|land=België

|lijnnr=21

|route=Arlon - Weyler - Differt - Messancy - Athus - Aix-sur-Cloie - Battincourt

{{RouteRij| {{Rimg|rhlr}} | Athus, Rue Houillon}}

{{RouteRij| {{BRimg|rrar}} | Athus, Centre/Rue Houillon}}

{{RouteRij| {{Rimg|rsr}}{{Rimg|rlr}} | Athus, Zoning}}

{{RouteRij| {{BRimg|rarr}} | Athus, Grand Rue}}

{{RouteRij| {{Rimg|rhrr}} | Athus, IMMA}}

{{RouteRij| {{Rimg|rsr}} | Aubange, Rue du Village}}

{{RouteRij| {{Rimg|rsr}} | Aubange, Place}}

{{RouteRijStation| {{Rimg|rsTr}} | Aubange|Aubange|Aubange, Gare}}

{{RouteRij| {{Rimg|rsr}} | Aubange, Route du Zoning}}